Paint striping device



June 12, 1934.

D. A. WALLACE PAINT STRIPING DEVICE Filed July 29, 1931 2 Sheets-Sheet lINVENTOR. WALL A 05.

DA W0 A 8% m ATTORNEYS.

June 12, 1934.

D. A. WALLACE PAINT STRIPING DEVICE Filed July 29, 1931 2 Sheets-Sheet 2.IIIIIIII kLa DAV/D A.

IN V EN TOR. ML LA OE. BY m A TTORNEYS.

Patented June 12, 1934 PATENT OFFICE PAINT STRIPIN G DEVICE David A.Wallace, Detroit, Mich., assignor to Chrysler Corporation, Detroit,Mich, a corporation of Delaware Application July 29, 1931, Serial N0.553,799

11 Claims.

This invention relates to an improved striping device.

Heretofore in applying paint stripes on articles with conventionalstriping devices, considerable difficulty has been encountered instarting the paint to flow at the commencement of a stroke immediatelyupon initial contacting of the pens of the device with the work, and instopping the flow of paint when the pens are lifted at the end of eachstroke. Attempts to remedy this condition have been made by providingvalves for controlling the flow of paint which are operable by valvestems that protrude through and beyond the outlets of the pens. Withsuch valve structures, and any other apparatus which relies upon linearmovement, it is necessary to retain the nozzle in a disadvantageousposition substantially normal to the surface upon which the stripes arebeing formed. The scraping contact of the valve stems with the workduring movement through the stripe applying strokes frequently scratchesing device to be held at an inclination to the surface of the workduring operation without obstructing the outlet of the pen; to provide aswiveled nozzle in a device of this character which is universallytiltable in all direction relative to the body of the device; to provideimproved means for yieldably holding the swiveled nozzle in axialalignment with the body portion; and to provide paint conductingpassages in the swiveled nozzle and body portion which do notcommunicate with each other when the nozzle is in axial alignment withthe body portion, but which are adapted to be brought into communicationwith each other by tilting of the nozzle in any direction relative tothe body portion of the device as the striping is applied to the work.

Further objects of the invention are to provide a swivel nozzle in adevice of this kind which has a pair of pens for forming spaced stripes;to provide separate passages in the swiveled nozzle for feeding adifferent colored paint to each pen, respectively; to provide separatepassages in the body portion for supplying a different colored paint toeach passage of the nozzle and which communicate with theircorresponding passages of the nozzle only when the latter is tilted atan inclination to the body portion so as to enable starting and stoppingof the flow of paint to the pens as the latter are applied to andremoved irom the surface of the work, respectively; and to provide aswivel nozzle which rotates freely relative to the body portion duringapplication of the pens to the surface of the work so as to equalize thepressure upon the pens.

An illustrative embodiment of the invention is shown in the accompanyingdrawings, in which:

Fig. 1 is a perspective view diagrammatically illustrating the manner inwhich my improved striping device is employed and the feeding of thepaint thereto by gravity.

Fig. 2 is a vertical section showing a striping device embodying myinvention in an inoperative condition.

Fig. 3 me view similar to Fig. 2 showing a striping device in anoperative condition.

Fig. 4 is a fragmentary perspective View of the striping deviceillustrating the manner in which pressure upon the striping pens isequalized.

Fig. 5 is a transverse section taken on the line 5 5 of Fig. 3.

Fig. 6 is a transverse section showing the parts of a striping devicethat embodies a modified form of the invention in inoperative relation.

Fig. 7 is a view similar to Fig. 6, showing the nozzle of the device inan operative position.

Fig. 8 is a transverse section taken on the line 88 of Fig. '7.

Fig. 9 is a vertical section of a striping device embodying a furtherdevelopment of the invention.

Fig. 10 is a transverse section taken on the line l0-10 of Fig. 9.

Fig. 11 is a transverse section taken on the line ll-11 of Fig. 10.

In the form shown in Figs. 1 to 5 inclusive, my improved striping deviceincludes a tubular body portion 1 having a passage 2 for conductingpaint, preferably fed by gravity, from a tank 3 through a flexible hose4. The tubular body portion has an enlarged head 5 having an innerrecess 6 in which a seat '7 is fixed. The seat '7 includes a convexedspherical surface 8 having an open circular groove 9 which issubstantially concentric with the axis of the body portion 1. The groove9 connected by passages 10 with the passage 2 of the body portion.

Formed at the outer end of the enlarged head 5 is a recess 11 into whicha nozzle 13 is extended. The nozzle 13 has a head portion 14 on itsinner extremity which is provided with a convexed spherical surface 15that conforms with and abuts against the concaved spherical surface 8 ofthe seat 7 Formed in the nozzle is a passage 16 having one extremityopen at the spherical surface of the head 14 and having branch passages17 leading to the outer extremity of the nozzle. Striping pens 18communicate with the branches 1'7 and are threaded on the outer end ofthe nozzle. These striping pens have outlets 19 at their extremity andadjacent tapered side portions 20.

The nozzle is tiltably mounted, or universally swiveled on the enlargedhead 5 of the body portion 1 and is yieldably held against displacementby a sleeve 21 which is slidably mounted in the recess 11 and which hasa radial flange 22 that bears against a shoulder 23 on the head 14 ofthe nozzle. The sleeve 21 is yieldably urged inwardly by a coil spring24 which bears between the flange 22 of the sleeve and the end of aclosure, or cap 25 which is externally threaded on the enlarged head 5of the body portion. The cap 25 is provided with an opening 26 which issubstantially larger than the portion of the nozzle with which the capregisters so as to permit a limited univerwith respect to the circulargroove 9.

sal wobble movement of the nozzle relative to the body portion.

The spring 24 and sleeve 21 firmly hold the spherical surfaces of thehead of the nozzle 14 and the seat 17 in firm contact with each otherand they also yieldably hold the nozzle substantially in alignment withthe body portion, as illustrated in Fig. 2, so as to retain the inneropen ends of the passage 16 in non-registering relation In the formshown in Figs. 1 to 5, the inner end of the passage 16 is closed by thatportion of the concaved spherical surface 8 of the surface '7 which isincluded within the circular groove 9.

In operation, the striping device is held at an inclination to thesurface of the work upon which stripes are to be applied, as illustratedin Fig. 3, and as the striping pens 18 are urged against the work with aslight pressure, the nozzle is tilted relative to the body portionsufiiciently to bring the open inner extremity of the passage 16 intoregistration with the open circular groove 9. When the parts are in thisrelation paint flows from the passage 2 of the body portion through thepassage 16 of the nozzle to the outlets 19 of the striping pens. Thestriping pens are held at an inclination to the surface of the work andrested upon their tapered side portions 20 and the outlets 19 of thepens are unobstructed during the movement of the devices. When thenozzle is tilted during the stripe applying strokes, the radial flange22 of the sleeve 21 bears upon the shoulders 23 of the head of thenozzle at a substantial distance from the axis of the nozzle, asillustrated in Fig. 3, and considerable force is exerted on the nozzle,tending to return it to its normal position in alignment with the bodyportion of the device. When the striping pens are lifted from thesurface of the work at the end of a stroke, the sleeve 21 and spring 23rapidly return the nozzle to its normal position and immediately cut offthe supply of paint to the pens so as to obviate dripping of paint uponthe work or widening of the stripe at the end of each stroke of thedevice. The central portion 26 of the concaved spherical surface of theseat 7 forms a sufiiciently tight shell at the inner end of the passage16 to prevent either paint or air from entering the passage 16. As aresult, the paint which remains in th passage 16 after the nozzle hasbeen returned to its normal position is prevented from flowing out ofthe passage and is retained in readiness for the next stroke of thedevice.

In Figs. 6, 7 and 8 is illustrated a modified form of my improvedstriping device which is adapted to simultaneously form stripes ofdifferent colors. The structure of the device is mainly identical tothat shown in Figs. 1 to 5 inclusive and corresponding parts of thestructure are designated by the same numerals used in the description ofFigs. 1 to 5. The tubular body portion 2, however, is provided with apair of passages 27 and 28 for conducting diiferently colored paintsrespectively, and the nozzle 13 has a pair of passages 29 and 36 forfeeding the diiferently colored paints to the striping pens 18. Formedin the concaved spherical side of the seat 8 are a pair of spaced outergrooves 31 which communicate with the passage 27 of the body portionthrough passages 32 in the seat 7. An inner circular groove 33, whichcommunicates with the passage 28 of the body portion through passages34, is provided at the central portion of the concavedside of the seat.The passage 29 of the nozzle has an outwardly extending end portionwhich normally registers with that part of the concaved surface of theseat which is located between the spaced grooves 31 and the openextremity of the passage of the nozzle registers'with that portion ofthe concaved side of the seat '7 which is inclosed within the innercircular groove 33 when the nozzle is in its normal position.

When the nozzle is tilted downwardly to the position illustrated in Fig.7, by application of the striping pens to the surface of the work, theopen end of the passage 29 registers and communicates with the outermostgroove 31 and the open end of the passage 30 communicates with the upper side of the groove 33. If the nozzle were tilted upwardly from theposition shown in Fig. 6, the open end of the groove 29 would registerwith the inner groove 31 and the open end of the passage 39 wouldregister with the lower side of the groove 33. Regardless of thedirection in which the nozzle is tilted, the open end of the passage 29is brought into communication with one of the grooves which is suppliedwith paint of a different color from the passage 28 of the body portion.

In the form shown in Figs. 9, 10 and 11, the striping device includes abody portion 35 having passages 36 and 37 for conducting differentlycolored paints, respectively. Seated in a recess 38 in the enlarged head39 of the body portion 35 is a seat 40 having a concaved side 41 againstwhich a convexed extremity of a nozzle 42 is yieldably held by a coilspring 43 and a shiftable sleeve 44. The coil spring 43 bears between acap 45 threaded on the enlarged head 39 of the body portion and a radialflange on the shiftable sleeve 43.

Formed in the nozzle 42 are passages 46 and 4'? which communicate withstriping pens 48 mountedon the outer extremity. of the nozzle. The innerend of the passage 46 has a pair of branches 49 each of whichcommunicate with a circular groove 50 formed in the spherical convexedextremity of the nozzle. The passage 4'7 has an open extremity whichcommunicates with a groove 51 which is also formed in the convexedextremity of the nozzle. A passage 52 in the seat 40 communicates at oneend with the passage 36 of the body portion and it registers at itsother end with that part of the convexed extremity of the nozzle whichlies between the grooves 50 when the nozzle is in its normal position.The seat 40 also has a passage 53 which communicates at one end with thepassage 37 of the body portion. The other end of the passage 53registers with that portion of the convexed extremity of the nozzlewhich is inclosed within the circular groove 51, when the nozzle is inits normal position.

When the nozzle is tilted by application of the striping pens to thesurface of the work at least one of the grooves 50 registers with thepassage 52 of the seat 40 and permits paint of one color to flow fromthe passages 36 of the body portion to one of the striping pens. Thistilting of the nozzle also bring the grooves 51 into registration withthe outer end of the passage 53 which permits paint of a different colorto flow from the passage 37 of the body portion to the other stripingpen. When the striping device is lifted from the surface of the work thenozzle is returned to its normal position in alignment with the bodyportion and all of the grooves in the convexed extremity of the nozzleare rotated out of registration with the passages 52 and 53 andtherefore the supply of paint to both nozzles is immediatelydiscontinued.

Although but several specific embodiments of this invention have hereinbeen shown and described, it will be understood that various changes inthe size, shape and arrangement of parts may be made without departingfrom the spirit of my invention and it is not my intention to limit itsscope other than by the terms of the appended claims.

What I claim is:

l. A striping device including a body portion having a face of curvedcontour and having a paint conducting passage therein leading to sadcurved face, a nozzle tiltably mounted on said body portion having acurved face fitting the curved face of said body portion including astriping pen and having a passage leading from its curved face adaptedto communicate with the passage of said body portion only when saidnozzle and body portion are in predetermined relative positions, andyieldable means urging said faces together for maintaining a sealedengagement therebetween and adapted to urge said nozzle and body portionfrom said predetermined relative positions for normally retaining saidpas sages in non-communicating relationship.

2. A striping device including a body portion having a paint conductingpassage therein, a nozzle universally swiveled on said body portionincluding a striping pen and having a passage adapted to communicatewith the passage of said body portion only when said nozzle and bodyportion are displaced from a predetermined relative position, and aresilient member for holding the contacting faces of said nozzle andbody portion in sealed relation and adapted to yieldably urge saidnozzle relative to said body portion and toward said predeterminedrelative positions for normally retaining said passages innon-communicating relationship.

3. A striping device including a body portion having a curved face and apaint conducting passage therein leading to said face, a nozzle uni--versally swiveled on said body portion including a shoulder and a facefitting the curved face of said body portion and having a passageleading from its face adapted to communicate with the passage of saidbody portion only when said nozzle and body portion are in predeterminedpositions, a rigid member shiftably mounted on said body portion andengageable with said shoulder, and a spring coacting between said memberand said body portion and yieldably urging said faces together and saidnozzle relative to said body portion and away from said predeterminedrelative positions for normally retaining said passages innon-communicating relationship.

4. In a striping device, a body portion including a spherical swivelseat having a circular groove therein and a communicating passage forfeeding paint thereto, and a nozzle universally swiveled on said seatincluding a sphericalsurface for normally closing said groove when saidnozzle and body portions are in predetermined relative positions andhaving a passage adapted to communicate with said groove when saidnozzle and body portions are displaced in any direction from saidpredetermined relative positions.

5. In a striping device, a body portion including a spherical swivelseat having a circular groove therein and a communicating passage forfeeding paint thereto, a nozzle universally swiveled on said seatincluding a spherical surface for normally closing said groove when saidnozzle and body portions are in predetermined relative positions andhaving a passage adapted to communicate with said groove when saidnozzle is not in said predetermined positions, and means for retainingthe spherical surface of said nozzle in sealed engagement with theswivel seat of said body portion and adapted to yieldably hold saidnozzle and body portion in said predetermined relative positions forpreventing the flow of paint to said nozzle.

6. In a striping device, a body portion having an end recess, aspherical swivel seat in said recess having a circular groove and acommunicating passage for feeding paint thereto, a nozzle universallyswiveled on said body portion including a head having a spherical seatconforming with and engaging the swivel seat of said body portion forsealing said groove and having a passage adapted to communicate withsaid groove when said nozzle is disposed at an inclination in anydirection relative to said body portion, a sleeve slidably mounted insaid recess and engaging the head of said nozzle, and a spring bearingupon said sleeve for retaining the spherical surfaces of said head inclose fitting relation with said swivel seat and for yieldably holdingsaid nozzle in alignment with said body portion.

7. In a striping device, a body portion including a concaved seat havingan open groove therein and having a communicating passage for feedingpaint to said groove, a nozzle swiveled on said body portion including astriping pen and having a convexed seat conforming with and abuttingsaid concaved seat and having a passage adapted to register with saidgroove when said nozzle is tilted during application of said pen to thework, and yieldable means normally holding said convexed seat in sealingengagement with the open side of said groove and adapted to tilt saidnozzle when said pen is lifted from said work so as to bring the passageof said nozzle and groove of said seat into non-communicating relation.

8. In a striping device, a body portion including a curved seat andhaving a passage open at said seat, a nozzle swiveled on said bodyportion having a passage and including a curved seat conforming with andabutting the seat of said body portion and having a circular groovecommunicating with the latter passage normally in non-registeringrelation with the passage of said body portion, a striping pen on saidnozzle communicating with the passage thereof, said nozzle beingtiltable in any direction during application I of said pen to the workfor registering said groove and the passage of said body portion, andmeans for returning said nozzle to its normal position when said pen islifted from the work.

9. In a striping device, a body portion having a pair of passagestherein each for conducting a difierently colored paint, a seat in saidbody portion having a pair of open circular grooves, each communicatingwith one of the passages of said body portion, and a nozzle swiveled onsaid seat including a pair of striping pens and having a pair ofpassages one communicating with each pen and normally in non-registeringrelation with the grooves of said seat, and each adapted to registerwith one of said grooves respectively when said nozzle is tilted in anydirection during application of said pens to the work.

10. A striping device including a body portion having a passage therein,a nozzle swiveled on said body portion tiltable in any directionrelative thereto during application of said nozzle to a piece of workand having a passage normally spaced from the passage of said bodyportion when said nozzle is in a predetermined position and adapted toregister with the latter passage when said nozzle is displaced in anydirection with respect to said predetermined position, and means forreturning said nozzle to said predetermined position so as to place saidpassages in non-oommunicating relation when said nozzle is lifted fromthe work.

11. In a striping device, a body portion having a pair of passagestherein, each for conducting a differently colored paint, a nozzleswiveled on said body portion and universally tiltable in any directionrelative thereto during application of said nozzle to a piece of workincluding a pair of striping pens and having passages communicating withsaid pens, each passage of said nozzle being non-communicative with acorresponding passage of said body portion when said nozzle is disposedin a predetermined relation thereto and adapted to communicate with apassage of said body portion when said nozzle is tilted in any directionrelative to the lattenand means for returning said nozzle to saidpredetermined relation with said body portion when said pens are liftedfrom the work so as to discontinue the flow of paint.

DAVID A. WALLACE.

